These changes are the raw update to linux-4.4.6-rt14. Kernel sources

[kvmfornfv.git] / kernel / net / netfilter / nf_log.c

diff --git a/kernel/net/netfilter/nf_log.c b/kernel/net/netfilter/nf_log.c
index 675d12c..a5d41df 100644 (file)
--- a/kernel/net/netfilter/nf_log.c
+++ b/kernel/net/netfilter/nf_log.c
@@ -107,12 +107,17 @@ EXPORT_SYMBOL(nf_log_register);
 
 void nf_log_unregister(struct nf_logger *logger)
 {
+       const struct nf_logger *log;
        int i;
 
        mutex_lock(&nf_log_mutex);
-       for (i = 0; i < NFPROTO_NUMPROTO; i++)
-               RCU_INIT_POINTER(loggers[i][logger->type], NULL);
+       for (i = 0; i < NFPROTO_NUMPROTO; i++) {
+               log = nft_log_dereference(loggers[i][logger->type]);
+               if (log == logger)
+                       RCU_INIT_POINTER(loggers[i][logger->type], NULL);
+       }
        mutex_unlock(&nf_log_mutex);
+       synchronize_rcu();
 }
 EXPORT_SYMBOL(nf_log_unregister);